On Windows or X11, (others ???) ?getGraphicsEvent
Cheers, Bert On Mon, Sep 30, 2013 at 7:46 AM, Stanislav Aggerwal <stan.agger...@gmail.com> wrote: > Consider the following: > > par(mar=c(0,0,0,0),xaxs = 'i',yaxs='i') > plot.new() > for(i in 1:20) > { > z <- matrix(runif(256*256), ncol=256) > dev.hold() > image(z, col=grey(0:255/255),zlim=c(0,1),useRaster=TRUE) > dev.flush() > Sys.sleep(.1) > } > > I would like to continuously display the animation until a mouse click > happens. Obviously, locator() can't be used for this, because it will halt > the animation while waiting for the mouse click. So something like this > won't work: > > while((r<-locator(n=1)) == NULL) > { > z <- matrix(runif(256*256), ncol=256) > dev.hold() > image(z, col=grey(0:255/255),zlim=c(0,1),useRaster=TRUE) > dev.flush() > Sys.sleep(.1) > } > > Can somebody suggest a way to get user input while displaying the > animation? I am willing to use a keypress if not the mouse. Essentially, I > need an input routine that does not wait for a response but just checks at > one instant (like kbhit in C). > > Thanks very much for any help. > > Stan > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.